PvP Initial Impressions.

[Paikis]

Warriors are useless once you've used Holmgang.
Paladin are useful for running interference. Turns out stuns with no cooldowns are fun, and so are the other control effects.
Sleep is bullshit. People are sleeping entire teams and then blowing one person up at a time.
Storm's Path debuff would be nice, if you could ever get the damned thing off. It's at the end of a 3 part combo that you can never land because the combo times out while you're trying to get into range. Can use Holmgang to get it off once though.

Seems like you just pop all your cooldowns, Holmgang their healer and try to kill him before he can run away.

EDIT2: Looks like the defensive/offensive bonuses from morale are decent. The beginner PvP set (Wolf) seems to be about the same effectiveness as full i90 PvE gear, you'll just have fewer hit points. If you have i90 gear, use it, else buy the Wolf stuff.
EDIT3: Healers seem to have discovered the sprint button, which is incredibly annoying since you need TP to do... anything. Chasing a sprinting healer is a waste of time.
EDIT4: Don't bother with tank stances or tanking jewellery. No one will hit you anyway, just go full damage setup.